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Genotyping of species of the genus Treponema spp. associated to ovine periodontitis

Grant number: 14/13979-8
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2014
Effective date (End): July 31, 2015
Field of knowledge:Agronomical Sciences - Veterinary Medicine
Principal Investigator:Iveraldo dos Santos Dutra
Grantee:Thamiris Naiasha Minari Ramos
Home Institution: Faculdade de Medicina Veterinária (FMVA). Universidade Estadual Paulista (UNESP). Campus de Araçatuba. Araçatuba , SP, Brazil


The "swollen face" of ruminants is a periodontitis that affects young and adult animals when kept in pasture areas recently reformed. It is characterized as a purulent, necrotic, progressive process, with changes in the dentition ond tooth loss that result in damage to animal health and economic losses. In ruminants, the evidences suggest the involvement of primary periodontopathogenic anaerobic microflora in the pathogenesis of disease and unknown food factor, associated to soil management. Among the anaerobic bacteria of recognized importance in periodontitis are those of the genus Treponema, responsible for promoting tissue damage and increase the depth of the periodontal pockets. Belonging to the family of spirochetes, they are isolated from periodontal pockets of humans and other animals. In general, they are found in high numbers in deep sites, and rarely in healthy sites. The presence of these bacteria have been associated with increased risk of particular site developing gingivitis or periodontitis. Treponema denticola is found more often in patients with advanced periodontitis and in dogs T. denticola, T. vincentii, T. medium, T. socranskii, T. maltophilum, T. amylovorum and T. pectinovorum are identified in high number in animals with severe periodontitis. The present study aims to identify species of the genus Treponema spp. associated to sheep periodontitis lesions by polymerase chain reaction, using primers related to these bacteria.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BORSANELLI, A. C.; RAMOS, T. N. M.; GAETTI-JARDIM, JR., E.; SCHWEITZER, C. M.; DUTRA, I. S. Treponema species in the subgingival microflora of ovine periodontitis. VETERINARY RECORD, v. 180, n. 6, p. 150+, FEB 2017. Web of Science Citations: 2.

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